Hallvard Thormarsson

Hallvard Thormarsson (851-885) was a Danish Viking chieftain during the late 9th century. He arrived in the British Isles in 884 and took command of a large raiding force in Danish-held Mercia, and, in 885, he crossed Watling Street and invaded Anglo-Saxon Mercia. Hallvard's raiding army came close to attacking the Mercian capital of Tamworth, but his army was met in battle at the Battle of Atherstone, and he and most of his men were killed.